.subject-stats {
    margin: 5px 0;
    padding: 10px;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 0.9em;
}

.subject-stats h4 {
    margin: 0 0 10px 0;
    color: #495057;
}

.stats-item {
    margin: 5px 0;
    color: #6c757d;
}

.stats-item strong {
    color: #212529;
}

.error-message {
    color: #dc3545;
    margin: 5px 0;
    padding: 5px;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
}